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What do you mean by polar and non-polar dielectrics? Giveexamples.

Question

What do you mean by polar and non-polar dielectrics? Giveexamples.

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Solution

Polar and non-polar dielectrics are types of dielectric materials which are used in capacitors, insulators and other electronic components.

  1. Polar Dielectrics: These are materials that have a permanent electric dipole moment. This means that the positive and negative charges within the material are displaced from each other, creating an inherent electric field. The polarization in these materials occurs due to the alignment of permanent dipoles along the direction of the applied electric field. Examples of polar dielectrics include water, many polymers, and some ceramics.

  2. Non-Polar Dielectrics: These are materials that do not have a permanent electric dipole moment. The positive and negative charges within the material are evenly distributed, so there is no inherent electric field. However, when an external electric field is applied, it can induce a temporary dipole moment by displacing the charges. Examples of non-polar dielectrics include air, many gases, and some plastics like polyethylene.

In summary, the main difference between polar and non-polar dielectrics is whether or not they have a permanent electric dipole moment. This affects their behavior in the presence of an electric field, and thus their suitability for different applications.

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